1883.] NATURAL SCIENCES OF PHILADELPHIA. 355 



Remel^, Adolf. Untersuchungen liber die versteinerungsfUbrenden Diluvial- 

 geschichfe des norddeutscher Flachlands mit besonderer Ueriicksich- 

 tigung der Mark Brandenburg. I Stiick, 1883. I. V. Williamson Fund. 

 Renault, M. B. Cours de botanique fossile. lre-3me An., 1881-83. 



I. V. Williamson Fund. 

 Considerations sur les rapports des lepidodendrons, des sigillaires et des 

 stigmaria, 1883. The Author. 



Report upon the practice in Europe with the heavy Armstrong, Woolwich and 

 Krupp Rifled Guns. Submitted by the Board of Engineers for Fortifi- 

 cations, 1883. War Department. 

 Report upon the statistics of production of the precious metals in the United 

 States, 1881. Horatio C. Burckard. 

 Reusch, H. H. Die fosailen fiihrenden krystallinischen Schiefer von Bergen 

 in Norwegen, 1883. I. V. Williamson Fund. 

 Revoil, G. Fauna et flore des Pays Comalis, 1882. Jos. Jeanes. 

 Bhees, William J. Catalogue of publications of the Smithsonian Institution 

 (1846-1882), with an alphabetical index of articles, 1882. 



The Institution. 

 Ribeiro, Carlos. Estudos geologicos. De8crip9ao de Solo quaternario das 

 Bacias hydrographicas de Tejo e Sado. 

 Noticia de algumas esta9oes e monumentos prehistoricos. 2 parts. 

 Descrip^ao de algunas silex a quart zites Lascados. 



Relatorio acerca de sexta reuniao do Congresso de Anthropologia e de 



archeologia prehistorico verificada na Cidade de Bruxelles no mez de 



Agosto de 1872. The Author. 



Richard^., Thos. New South Wales in 1881. Royal Society of N. S. W. 



Reichtofen, F. Freiherrn v. China. 4er Bd. I. V. Williamson Fund. 



Rivero, E. de and Juan Tschudi. Diego de Antiquedades Peruanas. Atlas, 



1851. Executor of Wm. S. Vaux. 



Royal Geological Society of Cornwall. Catalogue of the Library, 1882. 



The Society. 



Roca, Gen. D. Julio A. Informe official de la Comision Cientifica agregada al 



tstado Mayor General de la Expedicion al Rio Negro (Patagonia) 



realizada en los messes de April, Mayo y Junio de 1879. Eni. Ill, 



Geologia, 1882. Dr. F. V. Hayden. 



Roemer, Ferd. Lethgea geognostica. 1 Th. Lethsea palseozoica. Textband, 



2e Lief,, 1882. I. V. Williamson Fund. 



Romanes, Geo. J. The scientific evidences of organic evolution. 1882. 



Animal intelligence. 2d Ed., 1882. I. V. Williamson Fund. 



Roscoe, Henry E. Lessons in elementary chemistry. Inorganic and organic, 



1881. I. V. Williamson Fund. 



Rossmiissler's Iconographie der europaischen land- und siisswasser-Mollusken. 



N. f. I, 1 and 2. Wilson Fund. 



Royal Society. Catalogue of the scientific books in the library of the. 1883. 



The Society. 

 Runkel, F. Ueber Alpha-^Ethylidenvalerolacton, 1882. 



University of Wiirzburg. 

 Rut«t, A. Les alluvions modernes dans la moyenne Belgique. 



Les phenom^nes de la s(;dimentation marine. The Author. 



Ryder, J. A. On the mode of fixation of the fry of the oyster. 



Summary of recent progress in our knowledge of the culture, growth and 



anatomy of the oyster. The Author. 



Saccardo, P. A. Sylloge fungorum omnium hucusque cognitorum. I and II. 



, I. V. Williamson Fund. 



Salomon, C. Nomenclator der Qefasskryptogamen. 1883. 



I. V. Williamson Fund. 

 Sampson, F. A. Notes on the distribution of shells. Art. III. The Author. 



